DnsSectionAuthority  = 0x0002
	DnsSectionAdditional = 0x0003
)

type DNSSRVData struct {
	Target   *uint16
	Priority uint16
	Weight   uint16
	Port     uint16
	Pad      uint16
}

type DNSPTRData struct {
	Host *uint16
}

type DNSMXData struct {
	NameExchange *uint16
	Preference   uint16
	Pad          uint16
}

type DNSTXTData struct {
	StringCount uint16

		ldr.SymSect(ldr.Lookup("runtime.itablink", 0)),
		ldr.SymSect(ldr.Lookup("runtime.symtab", 0)),
		ldr.SymSect(ldr.Lookup("runtime.pclntab", 0)),
		ldr.SymSect(ldr.Lookup("runtime.noptrdata", 0)),
		ldr.SymSect(ldr.Lookup("runtime.data", 0)),
	}

	dataSects = make([]wasmDataSect, len(sections))
	for i, sect := range sections {
		data := ld.DatblkBytes(ctxt, int64(sect.Vaddr), int64(sect.Length))

				bld.SetType(sym.STEXT)
			} else {
				bld.SetType(sym.SRODATA)
			}
		} else {
			if sect.name == "__bss" {
				bld.SetType(sym.SNOPTRBSS)
				bld.SetData(nil)
			} else {
				bld.SetType(sym.SNOPTRDATA)
			}
		}

		sect.sym = s
	}

	// enter sub-symbols into symbol table.
	// have to guess sizes from next symbol.
	for i := uint32(0); i < symtab.nsym; i++ {
		machsym := &symtab.sym[i]

		case elf.SHF_ALLOC:
			sb.SetType(sym.SRODATA)

		case elf.SHF_ALLOC + elf.SHF_WRITE:
			if sect.type_ == elf.SHT_NOBITS {
				sb.SetType(sym.SNOPTRBSS)
			} else {
				sb.SetType(sym.SNOPTRDATA)
			}

		case elf.SHF_ALLOC + elf.SHF_EXECINSTR:
			sb.SetType(sym.STEXT)
		}

		if sect.name == ".got" || sect.name == ".toc" {
			sb.SetType(sym.SELFGOT)
		}